JP7392188B2 - optical unit - Google Patents

Description

The present invention relates to an optical unit.

Conventionally, a movable body, a fixed body, a support mechanism that movably supports the movable body with respect to the fixed body, and a gimbal frame that supports the movable body between the movable body and the fixed body via the support mechanism have been used. A variety of optical units are used, each of which includes a gimbal mechanism. For example, Patent Document 1 discloses an optical unit that includes a movable body, a fixed body, a gimbal mechanism having a movable frame, and a first contact spring and a second contact spring as support mechanisms. .

JP2016-61957A

However, in a conventional optical unit including a movable body, a fixed body, a support mechanism, and a gimbal mechanism, such as the optical unit of Patent Document 1, the gimbal frame portion of the gimbal mechanism may come off. Therefore, an object of the present invention is to suppress the gimbal frame portion from coming off.

The optical unit of the present invention includes a movable body including an optical module, a fixed body, a support mechanism that movably supports the movable body with respect to the fixed body, and a support mechanism that supports the movable body and the fixed body through the support mechanism. a gimbal mechanism having a gimbal frame part that supports the movable body between bodies, the gimbal frame part having a first support part extending part extending along the optical axis direction; a second support part extension part extending along the axial direction, and the support mechanism includes a first support part fixed to the fixed body and supporting the first support part extension part. and a second support part that is fixed to the movable body and supports the second support part extension part, and the first support part extension part is fixed to the first support part. The second supporting part extension part is supported by the fitting of the spherical convex surface and the spherical concave surface, and the second supporting part extension part is supported by the fitting of the spherical convex surface and the spherical concave surface, a first regulating mechanism that restricts movement of the first support part extension part and the first support part in the optical axis direction; and a first regulation mechanism that restricts movement of the first support part extension part and the second support part; A second regulating mechanism that regulates movement in the optical axis direction.

According to this aspect, the first regulating mechanism that regulates the movement of the first support part extension part and the first support part in the optical axis direction, and the first regulation mechanism that regulates the movement of the second support part extension part and the second support part. A second regulating mechanism that regulates movement in the optical axis direction. Therefore, it is possible to effectively suppress the gimbal frame portion from coming off in the optical axis direction. Further, the first support part extension part is supported by the fitting of the spherical convex surface and the spherical concave surface with respect to the first support part, and the second support part extension part is supported by the second support part. On the other hand, it is supported by fitting the spherical convex surface and the spherical concave surface. That is, by bringing the spherical surfaces into contact with each other, it is possible to suppress the gimbal frame portion from coming off in directions other than the optical axis direction.

In the optical unit of the present invention, there are two extending portions for the first supporting portion, and each of the extending portions for the first supporting portion extends along the first direction intersecting the optical axis direction. A pressing force is applied in the opposite direction, and there are two extending portions for the second supporting portion, and each of the extending portions for the second supporting portion has a first extending portion that intersects with the optical axis direction and the first direction. It is preferable to apply pressing forces in opposite directions along the two directions. Since each of the first support part extension parts and each of the second support part extension parts are configured to press in opposite directions, it is possible to suppress fluctuations in the position of the fulcrum and in the direction intersecting the optical axis direction. This is because it can effectively prevent the gimbal frame from coming off.

In the optical unit of the present invention, a spherical concave surface is formed in the first support part extension part, a spherical convex surface is formed in the first support part, and a spherical concave surface is formed in the second support part extension part. It is preferable that the second support portion is formed with a spherical convex surface. By configuring that the first support part extension part and the second support part extension part are formed with a spherical concave surface, and the first support part and the second support part are formed with a spherical convex surface, the optical unit can be This is because manufacturing can be facilitated.

In the optical unit of the present invention, the first regulating mechanism includes a first protruding portion that is provided on the first supporting portion and protrudes toward the first supporting portion extension portion; provided in the extension part, which allows the first protrusion to protrude and when the first support part extension part moves along the optical axis direction with respect to the first support part; a first abutting part that comes into contact with the protruding part; is provided on the second support part extension part to allow the second protrusion to protrude, and the second support part extension part is arranged along the optical axis direction with respect to the second support part. It is preferable to have a second abutting part that comes into contact with the second protruding part when the second protruding part is moved. By providing a protrusion on the first support part and the second support part, and providing a contact part that comes into contact with the protrusion on the first support part extension part and the second support part extension part, This is because the optical unit can be manufactured easily.

In the optical unit of the present invention, the first support part has a plurality of the first protrusions so as to sandwich the first support part extension part, and the second support part has a plurality of the first protrusion parts, and the second support part has a plurality of the first protrusion parts. It is preferable to have a plurality of the second protrusions so as to sandwich the extension part therebetween. By sandwiching the first support part extension between the first protrusion and the second support part extension between the second protrusion, the gimbal frame can be surrounded from both directions between the plurality of protrusions. This is because it is possible to effectively prevent the gimbal frame from coming off in the direction intersecting the optical axis direction.

In the optical unit of the present invention, the first support part extension part has a first hole that allows the first protrusion part to protrude, and the second support part extension part has a first hole part that allows the first protrusion part to protrude. It is preferable to have a second hole that allows two protrusions to protrude. Compared to a structure in which the first support part extension part and the second support part extension part are sandwiched between protrusions from both sides, the first support part extension part and the second support part extension part can be formed thinner. This is because the device can be made smaller.

In the optical unit of the present invention, it is preferable that the first support part has an L-shape, and the second support part has an L-shape. By making the first support part and the second support part L-shaped, the first support part and the second support part can serve as a regulating part in the direction in which the gimbal frame part is pushed, and the gimbal frame part comes off. This is because this can be effectively suppressed. Moreover, by making the first support part and the second support part L-shaped, the contact area with respect to the fixed body and the movable body can be increased, and the fixing strength with respect to the fixed body and the movable body can be increased.

In the optical unit of the present invention, the fixed body has an insertion path for the first support portion, and the first support portion has a width corresponding to the width of the insertion path for the first support portion. The movable body has a bent portion, and the movable body has an insertion path for the second support portion, and the second support portion has a width corresponding to the width of the insertion path of the second support portion. It is preferable to have a bent portion bent in this manner. This is because the positioning accuracy of the first support part with respect to the fixed body and the positioning accuracy of the second support part with respect to the movable body can be increased.

In the optical unit of the present invention, of the first support part extension part and the first support part, the side having the spherical convex surface is made of metal, and the second support part extension part and the second support part have a spherical convex surface. It is preferable that the side of the support portion provided with the spherical convex surface is made of metal. This is because by configuring the side provided with the spherical convex surface with metal, the structure provided with the spherical convex surface can be easily formed with high strength by welding.

The optical unit of the present invention can prevent the gimbal frame portion from coming off.

1 is a plan view of an optical unit according to Example 1 of the present invention. FIG. 1 is a perspective view of an optical unit according to Example 1 of the present invention. FIG. 1 is an exploded perspective view of an optical unit according to Example 1 of the present invention. FIG. FIG. 3 is a perspective view of the gimbal frame portion and support mechanism of the optical unit according to Example 1 of the present invention. FIG. 3 is a perspective view of a gimbal frame portion of the optical unit according to Example 1 of the present invention. FIG. 2 is a perspective view of a support mechanism for an optical unit according to Example 1 of the present invention. FIG. 3 is a side cross-sectional view showing a part of the gimbal frame portion and support mechanism of the optical unit according to Example 1 of the present invention, and the surrounding area thereof. FIG. 2 is a perspective view showing a part of the gimbal frame portion and support mechanism of the optical unit according to Example 1 of the present invention, and the surroundings thereof, and is a diagram showing a state in which the gimbal frame portion is restricted in the insertion direction. FIG. 2 is a perspective view showing a part of the gimbal frame portion and support mechanism of the optical unit according to Example 1 of the present invention, and the surrounding area thereof, and is a view showing a state in which the gimbal frame portion is restricted in a direction opposite to the insertion direction. be. FIG. 2 is a side cross-sectional view showing part of the gimbal frame and support mechanism of the optical unit according to Example 1 of the present invention. FIG. 7 is a side cross-sectional view showing a part of the gimbal frame portion and support mechanism of the optical unit according to Example 2 of the present invention. FIG. 7 is a side cross-sectional view showing part of the gimbal frame portion and support mechanism of the optical unit according to Example 3 of the present invention. FIG. 7 is a side cross-sectional view showing part of the gimbal frame and support mechanism of the optical unit according to Example 4 of the present invention. FIG. 7 is a front view showing part of the gimbal frame and support mechanism of the optical unit according to Example 5 of the present invention.

Embodiments of the present invention will be described below based on the drawings. Note that the same components in each embodiment are given the same reference numerals, and will be explained only in the first embodiment, and the explanation of the structures will be omitted in subsequent embodiments.

[Example 1] (Figures 1 to 10)
First, an optical unit according to Example 1 of the present invention will be described using FIGS. 1 to 10. In addition, in FIG. 2, the dashed-dotted line with the symbol L indicates the optical axis, the dashed-dotted line with the symbol L1 indicates the first axis that intersects the optical axis, and the dashed-dotted line with the symbol L2 indicates the optical axis. A second axis L2 intersecting the axis L and the first axis L1 is shown. In each figure, the Z-axis direction is the optical axis direction, the X-axis direction is the direction that intersects the optical axis, in other words, the yawing axis direction, and the Y-axis direction is the direction that intersects the optical axis, in other words, the pitching direction. is in the axial direction.

<Overview of overall configuration of optical unit>
The configuration of the optical unit 10 according to this embodiment will be described with reference to FIGS. 1 to 3. The optical unit 10 includes a movable body 14 including an optical module 12, and a movable body that can be displaced in a direction having a rotation axis in the Y-axis direction (pitching direction) and a direction having a rotation axis in the X-axis direction (yawing direction). A fixed body 16 that holds 14 is provided. Also, a rotational drive mechanism 18 that drives the movable body 14 in the pitching direction and the yawing direction, and a support mechanism 20 (thrust receiving member) that rotatably supports the movable body 14 in the pitching direction and the yawing direction with respect to the fixed body 16. It is equipped with Furthermore, the optical unit 10 includes a gimbal mechanism 21 having a gimbal frame section 25, and the gimbal frame section 25 is for a first support section extending along the optical axis direction from both ends of the first axis L1. It has an extending portion 27a and a second supporting portion extending portion 27b extending along the optical axis direction from both ends of the second axis L2.

<Optical module>
In this embodiment, the optical module 12 is formed into a substantially rectangular housing shape, and is used, for example, as a thin camera mounted on a camera-equipped mobile phone, a tablet PC, or the like. The optical module 12 includes a lens 12a on the subject side, and a rectangular housing 12b that includes optical equipment for capturing an image. The optical unit 10 in this embodiment includes, for example, pitching vibration (vibration in the rotational direction with the Y-axis direction as the rotational axis) and yawing vibration (vibration in the rotational direction with the X-axis direction as the rotational axis) that occurs in the optical module 12. It has a built-in actuator that corrects vibration (in the moving direction), and is configured to be able to correct pitching vibration and yawing vibration.

In this embodiment, the optical unit 10 has a configuration capable of correcting pitching shake and yawing shake, but the configuration is not limited to this. For example, the optical unit 10 can correct either pitching shake or yawing shake. It is also possible to have a configuration in which only the correction can be performed.

<Image sensor>
As shown in FIG. 3, the optical module 12 includes an image sensor 50 on the side opposite to the subject side. A first flexible wiring board 51a is connected to the image sensor 50. Here, the image sensor 50 of this embodiment has a connection part (not shown), and the first flexible wiring board 51a is connected to the connection part.

<Movable body>
1 to 3, the movable body 14 includes an optical module 12, a holder frame 22, and magnets 24A and 24B. The holder frame 22 is configured as a rectangular frame-shaped member provided so as to surround the remaining four sides excluding the front surface (object side surface) where the lens 12a of the optical module 12 is provided and the rear surface on the opposite side. . The holder frame 22 of this embodiment is configured such that, for example, the optical module 12 can be attached to and detached from it. Magnets 24A and 24B for pitching and yawing correction are attached to the outer surfaces of the two surfaces of the holder frame 22 that face the fixed body 16. In addition, in FIG. 3, the magnets 24A and 24B are shown in a state away from the holder frame 22 so that the positions where the magnets 24A and 24B are provided are shown in a state that is apart from the holder frame 22. is attached to.

<Fixed body>
1 to 3, the fixed body 16 includes a fixed frame 28 and coils 32A and 32B. In this embodiment, the fixed frame 28 includes a first front cover part 28a that surrounds the movable body 14 on the subject side, a side cover part 28b that surrounds four sides of the holder frame 22, and a first flexible wiring board provided on the subject side. 51a, and a rear cover section 28d that covers the side opposite to the subject side. In addition, in FIG. 3, the coils 32A and 32B are shown in a state away from the side cover part 28b so that the positions of the coils 32A and 32B with respect to the magnets 24A and 24B are easily understood, but the coils 32A and 32B is attached to the side cover portion 28b.

As shown in FIG. 3, in this embodiment, when the movable body 14 is disposed within the fixed body 16, the magnet 24A and the coil 32A, and the magnet 24B and the coil 32B are opposed to each other. Further, in this embodiment, the pair of magnet 24A and coil 32A and the pair of magnet 24B and coil 32B constitute a rotational drive mechanism 18. The rotational drive mechanism 18 corrects pitching and yawing of the movable body 14. In this embodiment, the coil 32A and the coil 32B are configured as wire-wound coils, as an example, but they may also be formed into a pattern board (coil board) in which the coils are incorporated into the board wiring as a pattern.

Further, pitching and yawing correction is performed as follows. When a shake occurs in the optical unit 10 in both the pitching direction and the yawing direction, or in either one direction, the shake is detected by a shake detection sensor (gyroscope) not shown, and the rotation drive mechanism 18 is driven based on the result. . Thereafter, using a magnetic sensor (Hall element) or the like, the rotation drive mechanism 18 acts to accurately correct the shake of the optical unit 10. That is, current is applied to each of the coils 32A and 32B so as to move the movable body 14 in a direction that cancels out the shake of the optical unit 10, thereby correcting the shake.

The optical unit 10 of this embodiment includes a rotation drive mechanism 18 that rotates the movable body 14 with respect to the fixed body 16 about the first axis L1 and the second axis L2 as rotation axes. The rotation in the pitching axis direction and the yawing axis direction is caused by a combination of rotations in the first axis L1 and the second axis L2. Here, as in this embodiment, the rotational drive mechanism 18 may be disposed at a position other than the side where the first flexible wiring board 51a is disposed in the X-axis direction with respect to the movable body 14. preferable. Since the rotational drive mechanism 18 can be placed on the side where the first flexible wiring board 51a is not formed, the rotational drive mechanism 18, the second flexible wiring board 51b connected to the rotational drive mechanism 18, and the first flexible wiring board 51a This is because contact between and can be suppressed. Therefore, with such a configuration, there is no need to increase the size of the optical unit 10, and the optical unit 10 can be made smaller. Note that "rotation" in this specification does not require 360° rotation, but includes the case of rocking in the rotational direction.

Note that the drive source for the vibration correcting operation is not limited to a voice coil motor configured by each pair of coils 32A and 32B and magnets 24A and 24B, such as the rotational drive mechanism 18. It is also possible to use a stepping motor, a piezo element, or the like as another driving source.

Next, with reference to FIGS. 4 to 10, the support mechanism 20 and gimbal mechanism 21, which are the main parts of the optical unit 10 of this embodiment, will be described in detail. Note that in FIGS. 7 to 10 of the optical unit 10 of this embodiment and FIGS. 11 to 14 of the optical unit 10 of embodiments 2 to 5, which will be described later, the first support by the first thrust receiving member 20a is Although the supporting structure of the extending portion 27a for the second supporting portion is shown, the supporting structure of the extending portion 27b for the second supporting portion by the second thrust receiving member 20b is also a similar structure.

<Gimbal mechanism>
The gimbal mechanism 21 is a mechanism that has spring properties and is formed by bending a metal flat plate material. Specifically, as shown in FIGS. 4 and 5, the gimbal mechanism 21 of this embodiment has a gimbal frame section 25, and extends from the four corners of the gimbal frame section 25 to the side opposite to the subject side. It is configured by including two first support part extension parts 27a and two second support part extension parts 27b, which are bent by 90 degrees in the optical axis direction. In other words, the gimbal frame section 25 of this embodiment includes two first support section extension sections 27a extending along the optical axis direction, and two first support section extension sections 27a extending along the optical axis direction. It has two second support part extension parts 27b. Note that all of the first support part extension part 27a and the second support part extension part 27b do not necessarily have to be plate-shaped, and only a part of them may be formed into a plate-shape to improve springiness. You may also make it work. With such a configuration, the gimbal mechanism 21 of this embodiment is configured to be able to apply pressurization in the outward direction O (FIG. 4).

<Support mechanism>
The support mechanism 20 rotatably supports the movable body 14 with respect to the fixed body 16 about the first axis L1 and the second axis L2 as rotation axes. As shown in FIG. 4, the support mechanism 20 includes two first thrust receiving members 20a that support the first support part extension part 27a, and two thrust receiving members 20a that support the second support part extension part 27b. and two second thrust receiving members 20b. The first thrust receiving members 20a are arranged at two opposing locations among the four corners of the rectangular frame-shaped portion of the side cover portion 28b of the fixed body 16, and the second thrust receiving members 20b are disposed on the rectangular frame-shaped movable body. They are arranged at two opposite locations at the four corners of the holder frame 22 of No. 14. That is, the first thrust receiving member 20a is fixed to the fixed body 16, and the second thrust receiving member 20b is fixed to the movable body 14. Note that the rectangular frame-shaped portion of the side cover portion 28b and the rectangular frame-shaped movable body 14 are arranged so that their four corners are aligned, and the first thrust receiving member 20a and the second thrust receiving member 20b are arranged at the four corners. They are placed one by one.

<Support structure of gimbal mechanism by support mechanism>
As shown in FIGS. 7 and 10, the first support part extension part 27a is provided with a spherical concave surface B1, the first thrust receiving member 20a is provided with a spherical convex surface B2, and the spherical concave surface B1 and The first support part extension part 27a is supported by the first thrust receiving member 20a by contacting the spherical convex surface B2. Note that the first support part extension part 27a and the second support part extension part 27b have the same structure, and the first thrust receiving member 20a and the second thrust receiving member 20b have the same structure. The second support part extension part 27b is provided with a spherical concave surface B1, and the second thrust receiving member 20b is provided with a spherical convex surface B2. The extension portion 27b is supported by the second thrust receiving member 20b. Each of the two first support part extension parts 27a and each of the two second support part extension parts 27b is configured to be pressurized in the outward direction O. Due to the pressure, each spherical concave surface B1 presses against each corresponding spherical convex surface B2, and the first support part extension part 27a and the second support part extension part 27b press against the corresponding first thrust receiving member 20a. and supported by the second thrust receiving member 20b.

Further, as shown in FIGS. 8 and 9, the first thrust receiving member 20a is formed with two first protrusions 201 that protrude toward the first support part extension part 27a. As shown in FIG. 9, the first support part extension part 27a allows the first protrusion part 201 to protrude, and also has a first support part extension part 27a with respect to the first thrust receiving member 20a. A first contact portion 271 is formed that comes into contact with the first protrusion 201 when the portion 27a moves along the optical axis direction. Note that the first support part extension part 27a and the second support part extension part 27b have the same structure, and the first thrust receiving member 20a and the second thrust receiving member 20b have the same structure. The second thrust receiving member 20b is formed with two second protrusions 202 that protrude toward the second support extension 27b. As shown in FIG. 9, the second support part extension part 27b allows the second protrusion part 202 to protrude and is provided with a second support part extension part 27b relative to the second thrust receiving member 20b. A second contact portion 272 is formed that comes into contact with the second protrusion 202 when the portion 27b moves toward the subject along the optical axis direction. In other words, the optical unit 10 of this embodiment includes a first regulating mechanism 127 that regulates the movement of the first supporting part extension part 27a and the first thrust receiving member 20a in the optical axis direction, and a second A second regulating mechanism 227 is provided that regulates movement of the supporting section extension portion 27b and the second thrust receiving member 20b in the optical axis direction.

Further, as shown in FIGS. 6 to 10, the first thrust receiving member 20a and the second thrust receiving member 20b are substantially L-shaped. In other words, the first thrust receiving member 20a and the second thrust receiving member 20b are connected to the side plate portion 211 that receives pressurization from the first supporting portion extending portion 27a and the second supporting portion extending portion 27b. As shown in FIG. 8, it has a floor plate part 210 that becomes a contact part for the tips 220 of the first support part extension part 27a and the second support part extension part 27b. As shown in FIG. 8, the floor plate part 210 has a first support part extending part 27a and a second support part extending part 27b with respect to the first thrust receiving member 20a and the second thrust receiving member 20b. When moving toward the side opposite to the subject side along the optical axis direction, the tip 220 comes into contact and serves to restrict the movement of the first support part extension part 27a and the second support part extension part 27b. are doing. The first thrust receiving member 20a and the second thrust receiving member 20b have an L-shaped groove 161 formed in the insertion path 162 of the fixed body 16 and an L-shaped groove 161 formed in the insertion path 142 of the movable body 14. By placing an adhesive in the groove 141 and bonding both the side plate portion 211 and the floor plate portion 210, it is firmly fixed to the fixed body 16 and the movable body 14.

Here, although the first thrust receiving member 20a and the second thrust receiving member 20b of this embodiment are L-shaped as described above, they may be configured without the floor plate portion 210. Even without the floor plate part 210, the first support part extending part 27a and the second support part extending part 27b can be arranged in the optical axis direction with respect to the first thrust receiving member 20a and the second thrust receiving member 20b. When moving to the side opposite to the subject side along the subject side, the wall portion 230 ( (see FIGS. 8 and 9), and the movement of the first support part extension part 27a and the second support part extension part 27b can be restricted.

As described above, the gimbal frame portion 25 supported by the movable body 14 and the fixed body 16 via the support mechanism 20 has two first support portion extension portions 27a extending along the optical axis direction. and two second support part extension parts 27b extending along the optical axis direction. The support mechanism 20 includes a first thrust receiving member 20a as two first support parts fixed to the fixed body 16 and supporting the first support part extension part 27a, and a second thrust receiving member 20a fixed to the movable body 14 and supporting the first support part extension part 27a. It has a second thrust receiving member 20b as a second support part that supports the extension part 27b.
The first protruding part 201 and the first abutting part 271, the floor plate part 210 of the first thrust receiving member 20a and the tip 220 of the first supporting part extending part 27a form the first supporting part extending part 271. A first regulating mechanism 127 is formed that regulates movement of the thrust receiving member 27a and the first thrust receiving member 20a in the optical axis direction. Similarly, the second protruding part 202 and the second abutting part 272, the floor plate part 210 of the second thrust receiving member 20b and the tip 220 of the second supporting part extending part 27b form the second supporting part extending part 272. A second regulating mechanism 227 is formed that regulates movement of the portion 27b and the second thrust receiving member 20b in the optical axis direction. Therefore, the optical unit 10 of this embodiment can effectively prevent the gimbal frame portion 25 from coming off in the optical axis direction.
Further, the two first support part extension parts 27a are both supported by the contact between the spherical convex surface B2 and the spherical concave surface B1 with respect to the first thrust receiving member 20a, and similarly, the two first support part extension parts 27a are Each of the second support part extension parts 27b is supported by the fitting of the spherical convex surface B2 and the spherical concave surface B1 with respect to the second thrust receiving member 20b. By bringing the spherical surfaces into contact with each other in this manner, the optical unit 10 of this embodiment suppresses the gimbal frame portion 25 from coming off even in directions other than the optical axis direction.

Further, as described above, each of the two first support part extension parts 27a extends in the outer direction O (in other words, along the first axis L1, which is the first direction intersecting the optical axis direction). Each of the two second support part extension parts 27b is also applied with a pressing force in the outer direction O (in other words, in a second direction intersecting with the optical axis direction and the first direction). A pressing force is applied in opposite directions along a certain second axis L2. In this way, each of the first support portion extension portions 27a and the second support portion extension portions 27b are configured to press in opposite directions, thereby suppressing the shake of the fulcrum position and suppressing the light. Even if a force is applied in any direction intersecting the axial direction, a repulsive force is generated and the spherical convex surface B2 and the spherical concave surface B1 are firmly abutted, and the optical unit 10 of this embodiment This effectively prevents the gimbal frame section 25 from coming off.

Furthermore, as described above, in the optical unit 10 of this embodiment, both the first thrust receiving member 20a and the second thrust receiving member 20b are L-shaped. Therefore, the first thrust receiving member 20a and the second thrust receiving member 20b serve as a regulating part in the direction in which the gimbal frame section 25 is pushed in, and effectively suppress the gimbal frame section 25 from coming off. . In addition, by making the first thrust receiving member 20a and the second thrust receiving member 20b L-shaped, the contact area with the fixed body 16 and the movable body 14 is increased, and the fixing strength with respect to the fixed body 16 and the movable body 14 is increased. is increasing.

Further, as shown in FIGS. 8 and 9, in the optical unit 10 of this embodiment, the fixed body 16 has an insertion path 162 for the first thrust receiving member 20a, and the first thrust receiving member 20a is It has a bent portion 201a that is bent to have a width corresponding to the width of the insertion path 162 of the first thrust receiving member 20a. Furthermore, the movable body 14 has an insertion path 142 for the second thrust receiving member 20b, and the second thrust receiving member 20b is bent to have a width corresponding to the width of the insertion path 142 for the second thrust receiving member 20b. It has a bent portion 202a. The optical unit 10 of this embodiment has such a configuration, thereby increasing the positioning accuracy of the first thrust receiving member 20a with respect to the fixed body 16 and the positioning accuracy of the second thrust receiving member 20b with respect to the movable body 14. .

In the optical unit 10 of this embodiment, the first support part extension part 27a and the second support part extension part 27b are made of metal, and the first thrust receiving member 20a and the second thrust receiving member 20b are made of metal. is made of metal or resin. In this way, of the first support part extending part 27a and the first thrust receiving member 20a, the side provided with the spherical convex surface B2 is made of metal, and the second support part extending part 27b and the second thrust receiving member It is preferable that the side of 20b provided with the spherical convex surface B2 is made of metal. This is because by configuring the side provided with the spherical convex surface B2 with metal, the structure provided with the spherical convex surface B2 can be formed easily and with high strength, for example by welding a metal sphere to a metal plate-shaped part. . Note that the structure including the spherical concave surface B1 may also be formed of metal, but by forming the structure including the spherical concave surface B1 of resin, the optimum spherical concave surface B1 can be easily formed and the sliding property on the spherical convex surface B2 can be improved. That is, the mobility of the movable body 14 can be improved. However, it is not limited to forming the side provided with the spherical convex surface B2 with metal, and is not limited to forming the side provided with the spherical concave surface B1 with resin.

Here, as shown in FIGS. 8 and 9, in the optical unit 10 of the present embodiment, the first thrust receiving member 20a has a first protruding portion so as to sandwich the first supporting portion extension portion 27a. 201, and the second thrust receiving member 20b has a plurality of second protrusions 202 sandwiching the second support part extension part 27b. By sandwiching the first support part extension part 27a with the first protrusion part 201 and sandwiching the second support part extension part 27b with the second protrusion part 202, the gimbal frame part 25 is sandwiched between the plurality of protrusion parts. It can be surrounded from both directions, and the gimbal frame section 25 can be effectively prevented from coming off in the direction intersecting the optical axis direction.

In addition, in the optical unit 10 of this embodiment, the spherical concave surface B1 is formed on the first support part extension part 27a, the spherical convex surface B2 is formed on the first thrust receiving member 20a, and the second support part extension part 27a is formed with a spherical concave surface B1. A spherical concave surface B1 is formed on the installation portion 27b, and a spherical convex surface B2 is formed on the second thrust receiving member 20b. With such a configuration, manufacturing of the optical unit 10 can be facilitated.

[Example 2] (Figure 11)
Next, the optical unit 10 of Example 2 will be explained using FIG. 11. FIG. 11 is a side sectional view showing part of the gimbal frame section 25 and support mechanism 20 of the optical unit 10 of the second embodiment, and is a view corresponding to FIG. 10 of the optical unit 10 of the first embodiment. Note that constituent members common to those in the first embodiment are indicated by the same reference numerals, and detailed description thereof will be omitted.
Note that the optical unit 10 of the present embodiment has the same configuration as the optical unit 10 of the first embodiment except for the support structure of the gimbal mechanism 21 by the support mechanism 20.

In the optical unit 10 of the first embodiment, the spherical concave surface B1 is formed on the first support part extension part 27a and the second support part extension part 27b, and the first thrust receiving member 20a and the second thrust receiving member 20b A spherical convex surface B2 was formed on the surface. On the other hand, in the optical unit 10 of this embodiment, as shown in FIG. A spherical concave surface B1 is formed on the thrust receiving member 20a and the second thrust receiving member 20b.

Further, both the optical unit 10 of the first embodiment and the optical unit 10 of the present embodiment have a first protrusion 201 that is provided on the first thrust receiving member 20a and protrudes toward the first support part extension part 27a. , is provided on the first support part extension part 27a to allow the first protrusion part 201 to protrude, and the first support part extension part 27a is provided along the optical axis direction with respect to the first thrust receiving member 20a. The first regulating mechanism 127 includes a first contact portion 271 that comes into contact with the first protrusion 201 when moved. Further, a second protrusion 202 provided on the second thrust receiving member 20b and protruding toward the second support part extension part 27b, and a second protrusion part 202 provided on the second support part extension part 27b. A second contact portion 272 that allows the protrusion of the second support portion 202 and comes into contact with the second protrusion 202 when the second support portion extension portion 27b moves along the optical axis direction with respect to the second thrust receiving member 20b. A second regulating mechanism 227 is provided. In this way, the first thrust receiving member 20a and the second thrust receiving member 20b are provided with protruding parts, and the first supporting part extending part 27a and the second supporting part extending part 27b are provided with abutting parts that come into contact with the projecting parts. By providing the contact portion, manufacturing of the optical unit 10 is facilitated.

[Example 3] (Figure 12)
Next, the optical unit 10 of Example 3 will be explained using FIG. 12. FIG. 12 is a side cross-sectional view showing part of the gimbal frame section 25 and support mechanism 20 of the optical unit 10 of the third embodiment, and corresponds to FIG. 10 of the optical unit 10 of the first embodiment. Note that constituent members common to the first and second embodiments described above are indicated by the same reference numerals, and detailed description thereof will be omitted.
Note that the optical unit 10 of this embodiment has the same configuration as the optical unit 10 of the first and second embodiments, except for the support structure of the gimbal mechanism 21 by the support mechanism 20.

The optical unit 10 of Examples 1 and 2 includes a first protrusion 201 and a second protrusion 202 on the first thrust receiving member 20a and the second thrust receiving member 20b, and the first support part extension part 27a. And the second support part extension part 27b was configured to be provided with a first abutting part 271 and a second abutting part 272 that abut the first protruding part 201 and the second protruding part 202. On the other hand, the optical unit 10 of the present example, as shown in FIG. 12, provides a first contact portion 271 and a second contact portion 272 on the first thrust receiving member 20a and the second thrust receiving member 20b, This is a configuration in which a first protrusion 201 and a second protrusion 202 are provided on the first support part extension part 27a and the second support part extension part 27b. In addition, as shown in FIG. 12, the optical unit 10 of this example has a first support part extension part 27a and a second support part extension part 27b, as in the optical unit 10 of Example 1. A spherical concave surface B1 is formed, and a spherical convex surface B2 is formed on the first thrust receiving member 20a and the second thrust receiving member 20b.

[Example 4] (Figure 13)
Next, the optical unit 10 of Example 4 will be explained using FIG. 13. FIG. 13 is a side sectional view showing part of the gimbal frame section 25 and support mechanism 20 of the optical unit 10 of the fourth embodiment, and is a view corresponding to FIG. 10 of the optical unit 10 of the first embodiment. Note that constituent members common to the first to third embodiments described above are indicated by the same reference numerals, and detailed description thereof will be omitted.
Note that the optical unit 10 of this embodiment has the same configuration as the optical units 10 of Examples 1 to 3, except for the support structure of the gimbal mechanism 21 by the support mechanism 20.

As shown in FIG. 13, the optical unit 10 of this embodiment, like the optical unit 10 of the third embodiment, has a first contact portion 271 and a first thrust receiving member 20a and a second thrust receiving member 20b. 2 contact parts 272 are provided, and the first protrusion part 201 and the second protrusion part 202 are provided in the first support part extension part 27a and the second support part extension part 27b. Further, as shown in FIG. 13, the optical unit 10 of the present embodiment has a first support part extension part 27a and a second support part extension part 27b, as in the optical unit 10 of the second embodiment. A spherical convex surface B2 is formed, and a spherical concave surface B1 is formed on the first thrust receiving member 20a and the second thrust receiving member 20b.

[Example 5] (Figure 14)
Next, the optical unit 10 of Example 5 will be explained using FIG. 14. FIG. 14 is a front view showing part of the gimbal frame section 25 and support mechanism 20 of the optical unit 10 of the fifth embodiment. Note that constituent members common to the first to fourth embodiments described above are indicated by the same reference numerals, and detailed description thereof will be omitted.
Note that the optical unit 10 of this embodiment has the same configuration as the optical units 10 of Examples 1 to 4, except for the support structure of the gimbal mechanism 21 by the support mechanism 20.

In the optical unit 10 of this embodiment, the first support part extension part 27a has a first hole part 273 that allows the first protrusion part 201 to protrude, and the second support part extension part 27b has a first hole part 273 that allows the first protrusion part 201 to protrude. , has a second hole 274 that allows the second protrusion 202 to protrude. The first protrusion 201 and the first hole 273 form a first regulation mechanism 127, and the second protrusion 202 and second hole 274 form a second regulation mechanism 227. With such a configuration, compared to a configuration in which the first support part extension part 27a and the second support part extension part 27b are sandwiched between protrusions from both sides, the first support part extension part 27a and the second support part extension part 27b are 27a and the second support part extension part 27b can be formed thin, making the device (optical unit 10) smaller.

The present invention is not limited to the above-described embodiments, and can be realized in various configurations without departing from the spirit thereof. For example, the technical features in the embodiments corresponding to the technical features in each form described in the summary column of the invention may be used to solve some or all of the above-mentioned problems, or to achieve one of the above-mentioned effects. In order to achieve some or all of the above, it is possible to replace or combine them as appropriate.
Further, unless the technical feature is described as essential in this specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 10... Optical unit, 12... Optical module, 12a... Lens, 12b... Housing,
14... Movable body, 16... Fixed body, 18... Rotation drive mechanism,
20...Support mechanism (thrust receiving member),
20a...first thrust receiving member (first support part),
20b...Second thrust receiving member (second support part), 21...Gimbal mechanism,
22...Holder frame, 24A...Magnet, 24B...Magnet, 25...Gimbal frame part,
27a... Extension part for the first support part, 27b... Extension part for the second support part, 28... Fixed frame,
28a...first front cover part, 28b...side cover part, 28c...second front cover part,
28d... Rear cover part, 32A... Coil, 32B... Coil, 50... Image pickup element,
51a...first flexible wiring board, 51b...second flexible wiring board,
127...First regulation mechanism, 141...Groove, 142...Insertion path, 161...Groove,
162... Insertion path, 201... First protrusion (first regulation mechanism),
201a...Bending portion, 202...Second protrusion (second regulation mechanism),
202a...Bending portion, 210...Floor plate portion (first regulation mechanism, second regulation mechanism),
211...Side plate part, 220...Tip (first regulation mechanism, second regulation mechanism), 230...Wall part,
271...first contact part (first regulation mechanism), 272...second contact part (second regulation mechanism),
273...first hole (first regulation mechanism), 274...second hole (second regulation mechanism),
B1... Spherical concave surface, B2... Spherical convex surface, L... Optical axis

Claims (7)

a movable body including an optical module;
a fixed body;
a support mechanism that movably supports the movable body with respect to the fixed body;
a gimbal mechanism having a gimbal frame portion that supports the movable body between the movable body and the fixed body via the support mechanism,
The gimbal frame section includes two first support section extending sections extending along the optical axis direction from both ends in a first direction intersecting the optical axis direction, and two first support section extension sections extending along the optical axis direction from both ends in a first direction intersecting the optical axis direction. two second support part extension parts extending along the optical axis direction from both ends of the second direction intersecting the direction;
The support mechanism includes two first support parts that are fixed to the fixed body and support the two first support part extension parts, and two second support part extension parts that are fixed to the movable body and support the two first support part extension parts. two second support parts that support the
Each of the two first support portion extension portions is formed with a spherical concave surface that is concave toward the inside, and each of the two first support portions is formed with a spherical convex surface that projects toward the inside. the spherical concave surface of the first support part extension part is supported by fitting with the spherical convex surface of the first support part,
Each of the two second support portion extension portions is formed with a spherical concave surface that is concave toward the inside, and each of the two second support portions is formed with a spherical convex surface that projects toward the inside. The optical unit is characterized in that the spherical concave surface of the second support part extension part is supported by fitting with the spherical convex surface of the second support part. The optical unit according to claim 1,
The spherical concave surface formed on each of the two first support part extension parts is located on the outer side of the spherical convex surface formed on each of the two first support parts along the first direction. Apply pressing force to
The spherical concave surfaces formed on each of the two second support portion extension portions are located on the outer sides of the spherical convex surfaces formed on each of the two second support portions along the second direction. An optical unit characterized by applying a pressing force to. The optical unit according to claim 2,
The two first support part extension parts and the two second support part extension parts are formed in the gimbal frame part by bending a metal flat plate material,
By bending the gimbal frame portion from the four corner portions in the optical axis direction, the first support portion extension portion and the second support portion extension portion each apply outward pressing force. Characteristic optical unit. The optical unit according to claim 1,
The spherical concave surface of the first support part extension part is provided at the tip of the first support part extension part,
The first support part is a first thrust receiving member having a side plate part provided with the spherical convex surface that receives pressurization from the spherical concave surface of the first support part extension part,
The spherical concave surface of the second support part extension part is provided at the tip of the second support part extension part,
The second support part is a second thrust receiving member having a side plate part provided with the spherical convex surface that receives pressurization from the spherical concave surface of the second support part extension part. . The optical unit according to claim 4,
The side plate portions of each of the first thrust receiving member and the second thrust receiving member are metal plate portions, and a metal sphere is welded to the plate portions to form the spherical convex surface. Characteristic optical unit. The optical unit according to claim 4,
The first thrust receiving member has a first protrusion that protrudes toward the first support extension, and the first support extension allows the first protrusion to protrude. and a first contact portion that comes into contact with the first protrusion when the first support portion extension portion moves along the optical axis direction with respect to the first support portion,
The second thrust receiving member has a second protrusion that protrudes toward the second support extension, and the second support extension allows the second protrusion to protrude. and a second abutting part that comes into contact with the second protrusion when the second supporting part extension part moves along the optical axis direction with respect to the second supporting part. optical unit. The optical unit according to claim 1,
The first support portion and the first support portion extension portion include a first restriction mechanism that restricts movement of the first support portion extension portion in the optical axis direction,
The second support portion and the second support portion extension portion are characterized in that they include a second restriction mechanism that restricts movement of the second support portion extension portion in the optical axis direction. optical unit.

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